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WO2010078854A1 - Système, dispositif et procédé de transmission d'informations relatives à une liaison montante - Google Patents

Système, dispositif et procédé de transmission d'informations relatives à une liaison montante Download PDF

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Publication number
WO2010078854A1
WO2010078854A1 PCT/CN2010/070132 CN2010070132W WO2010078854A1 WO 2010078854 A1 WO2010078854 A1 WO 2010078854A1 CN 2010070132 W CN2010070132 W CN 2010070132W WO 2010078854 A1 WO2010078854 A1 WO 2010078854A1
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WO
WIPO (PCT)
Prior art keywords
uplink
cell
coordinated
physical resource
physical
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2010/070132
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English (en)
Chinese (zh)
Inventor
万蕾
赵亚军
程型清
任晓涛
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Huawei Technologies Co Ltd
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Huawei Technologies Co Ltd
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Application filed by Huawei Technologies Co Ltd filed Critical Huawei Technologies Co Ltd
Priority to EP10729113A priority Critical patent/EP2387268A4/fr
Publication of WO2010078854A1 publication Critical patent/WO2010078854A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W72/00—Local resource management
    • H04W72/20—Control channels or signalling for resource management
    • H04W72/23—Control channels or signalling for resource management in the downlink direction of a wireless link, i.e. towards a terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/002—Transmission of channel access control information
    • H04W74/006—Transmission of channel access control information in the downlink, i.e. towards the terminal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W74/00—Wireless channel access
    • H04W74/08—Non-scheduled access, e.g. ALOHA
    • H04W74/0833—Random access procedures, e.g. with 4-step access

Definitions

  • downlink coordinated multipoint transmission in Coordinated Multi-Point Transmission (CoMP) technology may be used, that is, multiple cells are jointly connected to the same terminal.
  • the signal is transmitted to enhance the signal to interference-and-noise ratio of the received signal of the terminal or to increase the throughput of the system transmission.
  • the multiple cells that use the CoMP technology to transmit signals to the same terminal are called coordinated cells, and the coordinated cells can be divided into an anchor cell and a serving cell.
  • the shared physical resources corresponding to the Physical Uplink Shared Channel may be cooperatively allocated by the coordinated cells, that is, the cooperative data may be cooperatively transmitted by using multiple coordinated cells for the uplink data information (reception and/or For the uplink control information, the random access information, and the reference symbol, the physical uplink access channel (Physical Uplink Control Channel, PUCCH) corresponding to the control physical resource, the physical random access channel (Physical Random Access Channel)
  • PUCCH Physical Uplink Control Channel
  • RS reference signal
  • Embodiments of the present invention provide a method, an apparatus, and a system for transmitting uplink information, which are used to improve effective coverage of a coordinated cell and reduce interference between coordinated cells.
  • the embodiment of the invention provides a method for transmitting uplink information, including:
  • the first coordinated cell allocates, to the user equipment, the uplink physical resource of the virtual cell to which the first coordinated cell belongs, where the virtual cell includes one or more coordinated cells that provide cooperative services for the user equipment, and the uplink physical resources include the following: One or any combination thereof: controlling physical resources, accessing physical resources, and referring to physical resources;
  • the first coordinated cell notifies the UE of the uplink physical resource, so that the UE uses the uplink physical resource.
  • the embodiment of the invention provides a method for transmitting uplink information, including:
  • the mapping rule Acquiring an uplink physical resource and an uplink mapping rule corresponding to the second object negotiated by the coordinated cell, where the second object includes one or any combination of the following: a physical uplink control channel, a physical random access channel, and a reference symbol;
  • the mapping rule transmits the second object by using the above uplink physical resource.
  • An embodiment of the present invention provides another method for transmitting uplink information, including: acquiring a frequency hopping mode and/or a multi-antenna transmission mode of a shared physical resource corresponding to an uplink physical shared channel negotiated by a coordinated cell;
  • the uplink data information is transmitted by using the shared physical resource according to the frequency hopping mode and/or the multi-antenna transmission mode.
  • An embodiment of the present invention further provides an uplink information transmission apparatus, including:
  • a first acquiring module configured to acquire an uplink physical resource and an uplink mapping rule corresponding to a physical uplink control channel and/or a physical random access channel and/or a reference symbol negotiated by the coordinated cell;
  • a first transmission module configured to transmit uplink control information and/or random access information and/or the reference symbols by using the uplink physical resource according to the foregoing uplink mapping rule.
  • the embodiment of the present invention further provides another uplink information transmission apparatus, including: a second acquiring module, configured to acquire a shared physical resource and a frequency hopping mode and/or a multi-antenna transmission mode corresponding to the uplink physical shared channel negotiated by the coordinated cell. ;
  • a second transmission module configured to transmit the uplink data information by using the shared physical resource according to the frequency hopping mode and/or the multi-antenna transmission mode.
  • the embodiment of the present invention cooperatively allocates physical uplink control channels and/or physical random access channels and/or uplink physical resources corresponding to reference symbols by multiple coordinated cells. And transmitting the uplink control information and/or the random access information and/or the reference symbol by using the uplink physical resource according to the uplink mapping rule, so that the uplink control information, the random access information, and the reference symbol may also adopt a cooperative cell cooperative transmission manner.
  • the effective coverage of the coordinated cell is improved, and the interference between the coordinated cells is effectively reduced.
  • the frequency hopping mode and/or the multi-antenna mode of the shared physical resource are negotiated by multiple coordinated cells, so that the conflict of the shared physical resources can be reduced in the case of using the frequency hopping technology or the scrambling technology.
  • FIG. 1 is a schematic flowchart of a method for transmitting uplink information according to Embodiment 1 of the present invention
  • FIG. 2 is a schematic flowchart of a method for transmitting uplink information according to Embodiment 2 of the present invention
  • FIG. 3 is a schematic flowchart of a method for transmitting uplink information according to Embodiment 3 of the present invention
  • FIG. 4 is a schematic flowchart of a method for transmitting uplink information according to Embodiment 4 of the present invention.
  • FIG. 5 is a schematic flowchart of a method for transmitting uplink information according to Embodiment 5 of the present invention.
  • FIG. 6 is a schematic flowchart of a method for transmitting uplink information according to Embodiment 6 of the present invention.
  • FIG. 7 is a schematic flowchart diagram of another method for transmitting uplink information according to Embodiment 7 of the present invention.
  • Embodiment 8 is a schematic structural diagram of an apparatus for transmitting uplink information according to Embodiment 8 of the present invention.
  • FIG. 9 is a schematic structural diagram of another uplink information transmission apparatus according to Embodiment 9 of the present invention.
  • a network node in a CoMP system, includes a base station, one or more Access Points (APs), and a User Equipment (UE).
  • APs can be geographically dispersed and connected to the same or different base stations.
  • a plurality of APs may cooperate to transmit and receive data.
  • the coordinated APs may belong to the same base station or belong to different base stations, and do not affect the implementation of the embodiments of the present invention.
  • the relationship between the AP and the cell may be that one cell includes one AP, or one cell includes multiple APs, and may be a single AP or multiple APs provide services for the same terminal, which does not affect the implementation of the embodiment of the present invention.
  • the following embodiments of the present invention are described by taking one AP as an example.
  • each AP can be equivalent to one coordinated cell, and the embodiment of the present invention can also be implemented.
  • the coordinated data transmission mode may be adopted for the uplink data information, and the coordinated cell cannot be used for the uplink control information, the random access information, and the reference symbol.
  • the cooperative transmission mode therefore, the uplink control signal transmitted by the physical uplink control channel, the random access signal and the reference symbol transmitted by the physical random access channel may be smaller than the coverage of the uplink data signal transmitted by the physical uplink shared channel, so that the cooperation
  • the effective coverage of the cell is limited by the control signal transmitted by the physical uplink control channel, the random access signal transmitted by the physical random access channel, and the coverage of the reference symbol, thereby reducing the effective coverage of the coordinated cell.
  • the embodiments of the present invention need to provide an uplink information transmission method, so that the uplink control signal, physical random access, and physical uplink control channel transmission can be implemented by using a coordinated transmission mode for the uplink control signal, the random access signal, and the reference compliance.
  • the coverage of the random access signal and the reference symbol transmitted by the channel is the same as the coverage of the uplink data signal transmitted by the physical uplink shared channel, and the effective coverage of the coordinated cell is expanded.
  • FIG. 1 is a schematic flowchart of a method for transmitting uplink information according to Embodiment 1 of the present invention. As shown in FIG. 1, the method for transmitting uplink information in this embodiment may include the following steps:
  • Step 101 Obtain an uplink physical resource and an uplink mapping rule corresponding to a physical uplink control channel and/or a physical random access channel and/or a reference symbol negotiated by the coordinated cell.
  • Step 102 Use the uplink physical resource to transmit uplink control information and/or random access information and/or the reference symbol according to the uplink mapping rule.
  • the uplink physical resource includes one or more of the following physical resources: a control physical resource corresponding to the physical uplink control channel, an access physical resource corresponding to the physical random access channel, and a reference physical resource corresponding to the reference symbol;
  • One or more of the mapping rules an uplink control mapping rule, an access mapping rule, and a reference mapping rule.
  • a plurality of coordinated cells are cooperatively allocated, and a plurality of coordinated cells cooperatively allocate physical uplink control channels and/or physical random access channels and/or uplink physical resources corresponding to reference symbols, and are utilized according to uplink mapping rules.
  • the uplink physical resource transmits the uplink control information and/or the random access information and/or the reference symbol, so that the uplink control information, the random access information, and the reference conformance can also be used to implement the physical uplink control channel transmission by using the cooperative cell cooperative transmission mode.
  • the coverage of the uplink control signal, the random access signal and the reference symbol transmitted by the physical random access channel is the same as the coverage of the uplink data signal transmitted by the physical uplink shared channel, and the coordinated cell is improved. Effective coverage.
  • the control physical resource corresponding to the physical uplink control channel, the access physical resource corresponding to the physical random access channel, and the reference physical resource corresponding to the reference symbol are the primary cell independently allocated to the terminal in the cell. Regardless of the situation of other coordinated cells, it may cause mutual interference between the coordinated cells.
  • cell 1 and cell 2 are the coordinated cells of UE1, where cell 1 is the primary cell and cell 2 is the serving cell; cell 2 and cell 3 are the coordinated cells of UE2, and for UE2, cell 2 is the primary cell.
  • Cell 3 is a serving cell.
  • the cell 1 is the primary cell of the UE1, and the uplink control physical resource of the UE2 is allocated to the UE1, and the cell 2 is the uplink control physical resource allocated to the UE2.
  • the UE1 may generate interference between the uplink information transmitted by the UE2 and the uplink information transmitted by the UE2.
  • the coordinated allocation between the multiple coordinated cells is to prevent the coordinated resources from allocating the corresponding resources of the same or high mutual interference to the UEs served by the coordinated cells, thereby effectively reducing the coordinated cells. Interference.
  • FIG. 2 is a schematic flowchart of a method for transmitting uplink information according to Embodiment 2 of the present invention. As shown in FIG. 2, the method for transmitting uplink information in this embodiment may include the following steps:
  • Step 201 The terminal acquires a control physical resource and an uplink control mapping rule corresponding to the physical uplink control channel negotiated by the coordinated cell.
  • Step 202 The terminal maps the control physical resource to the physical uplink control channel according to the uplink control mapping rule.
  • Step 203 The terminal uses the physical uplink control channel to transmit the uplink control information.
  • the uplink information transmission method of the present embodiment uses a plurality of coordinated cell cooperative transmission modes for the uplink control information, and the control physical resources corresponding to the physical uplink control channel are cooperatively allocated by multiple coordinated cells, so that the uplink control mapping can be utilized.
  • the rule maps the control physical resource to a physical uplink control channel, and uses the physical uplink control channel to transmit uplink control information.
  • FIG. 3 is a schematic flowchart of a method for transmitting uplink information according to Embodiment 3 of the present invention. As shown in FIG. 3, the method for transmitting uplink information in this embodiment may include the following steps:
  • Step 301 The coordinated cell negotiates a control physical resource and an uplink control mapping rule corresponding to the physical uplink control channel.
  • the control physical resource for the CoMP may be allocated only by the primary cell, or the control physical resource for the CoMP may be uniformly allocated by the one or multiple serving cells, where the allocated serving cell may be negotiated by each coordinated cell.
  • the determining may also be specified by the primary cell, or may be preset.
  • each of the coordinated cells, that is, the primary cell and the serving cell may be independently allocated control physical resources for each terminal served by the serving cell.
  • a coordinated cell negotiates the allocation of control physical resources. If there are two coordinated cells, Celll and Cell2, respectively, Celll and Cell2 form a CoMP cell CoMPl.
  • Physical resources include resource group 1, resource group 2, resource group 3, and resource group 4.
  • the UE1 and the UE2 are in the CoMP mode, and are coordinated by the coordinated cell in the CoMP1, the primary cell of the UE1 is Celll, the primary cell of the UE2 is Cell2, and the UE3 and the UE4 are UEs in the non-CoMP mode, UE3 Belongs to Celll, UE4 belongs to Cell2.
  • Scenario 1 CoMPl l selects one of the resource groups, for example: Resource group 1, the coordinated cell in CoMPll is at
  • the UE (UE1, UE2) in the CoMP mode allocates a certain resource in the resource group 1.
  • Resource group 1 contains resource a and resource b
  • Celll allocates resource in resource group 1 to UE1. Then, when Cell2 allocates resources to UE2, it will not allocate resource a, and can only allocate! ).
  • the resource group selected by the CoMPll may be: a primary cell, a service cell configured by the system, or a serving cell selected by the terminal to allocate and control physical resources.
  • the coordinated cell may statically allocate and control physical resources, and may also dynamically control the physical resources according to service requirements and/or load allocation.
  • control physical resource negotiated by the coordinated cell may be all the control physical resources corresponding to the coordinated cell, and may also be a part of the physical resource controlled by the coordinated cell, and the coordinated cell may apply various transmit diversity modes as the sending mode.
  • the foregoing transmit diversity mode may be: a Spatial Frequency Block Coding (SFBC), a Cyclic Delay Diversity (CDD), or the like.
  • SFBC Spatial Frequency Block Coding
  • CDD Cyclic Delay Diversity
  • main body and manner of the allocation may refer to the above manner, and details are not described herein again.
  • Scenario 2 CoMPll selects several resource groups, for example: resource group 1 and resource group 2, and the coordinated cell in CoMP1 allocates one of the two resource groups to the UEs (UE1, UE2) in CoMP mode.
  • resource group 1 includes resource a and resource b
  • resource group 2 includes resource c and resource d.
  • Both Cell1 and Cell2 can allocate resource a, resource b, resource c, and resource d to UE1 and UE2.
  • Celll allocates resource a in resource group 1 to UE1, Cell2 gives UE2 a score.
  • the resource is allocated, the resource a is not allocated, and only the resource b, the resource c, or the resource d can be allocated.
  • the cell 2 can select a resource that has a small influence on the resource a from the resource b, the resource c, and the resource d.
  • CoMPl l does not specifically use a certain group or groups of resources. However, when the coordinated cells in the CoMP11 allocate resources to the UEs in the CoMP mode, they coordinate with each other. For example: Resource group 1 contains resource a and resource b, resource group 2 contains resource c and resource d, Celll can only allocate resource a and resource b, and Cell2 can only allocate resource c and resource d. Cell1 allocates the resources in resource group 1 to UE1, and Celll can inform Cell2 when the resource a is used. When Cell2 allocates resources to UE2, Cell2 can select from resource c and resource d to interact with resource a. Resources. That is, Celll and Cell2 can coordinate with each other when allocating resources. The resources allocated by UE3 and UE1, UE4 and UE2 may be the same or different.
  • Step 302 The terminal acquires a control physical resource and an uplink control mapping rule corresponding to the physical uplink control channel negotiated by the coordinated cell.
  • Step 303 The terminal maps the control physical resource to the physical uplink control channel according to the uplink control mapping rule.
  • the control physical resources include one or more of the following resources: carrier, subcarrier, physical resource block (PRB), subframe, time slot, sequence/base sequence, sequence offset, sequence comb , frequency hopping pattern, period.
  • PRB physical resource block
  • each coordinated cell may allocate different PRBs to each terminal of the cooperative service; or may allocate the same PRB to each terminal of the cooperative service, and adopt the same base sequence and different sequence offsets;
  • the same PRB is allocated to each terminal of its cooperative service, and different base sequences are used, wherein different base sequences can be selected as low cross-correlation sequences.
  • the coordinated cell may negotiate appropriate physical resources according to the situation of each terminal.
  • the terminal in the CoMP state can occupy the same PRB as the terminal with low mutual interference, and the PRB that is different from the terminal with high mutual interference; the terminal in the CoMP state can cooperate with other coordinated cells.
  • Terminals with low mutual interference use different base sequences, and the same base sequence is used for terminals with high mutual interference in other coordinated cells, and different sequence offsets; the coordinated cell can negotiate the hopping pattern used by the terminal in the CoMP state. .
  • each coordinated cell may allocate the same PRB to each terminal of the cooperative service, and each control physical resource may be mapped to the corresponding physical uplink control channel according to the uplink control mapping rule.
  • each coordinated cell may receive the uplink control information of the terminal at the same time or several of the coordinated cells, and then the primary cell performs the merging process of the information or is merged by the pre-designated coordinated cell, or may be The coordinated cell merging process determined by the state negotiation; or received by one of the primary cell or other coordinated cells, and processed separately by the received serving cell.
  • different coordinated cells cooperate to perform physical uplink control channel resource allocation and mapping and/or scrambling, and the resources used may be independently allocated and mapped and/or scrambled respectively; or resources of different coordinated cells adopt the same group of physics.
  • the method for allocating the control of the physical resource by the coordinated cell may be applicable to the related content in other embodiments, and is not repeatedly described in the following embodiments of the present invention.
  • FIG. 4 is a schematic flowchart of a method for transmitting uplink information according to Embodiment 4 of the present invention. As shown in FIG. 4, the method for transmitting uplink information in this embodiment may include the following steps:
  • Step 401 The coordinated cell negotiates the control physical resource and the uplink control mapping rule corresponding to the physical uplink control channel.
  • Step 402 The terminal acquires the identifier information corresponding to the control physical resource and the uplink control mapping rule from the coordinated cell.
  • Step 403 The terminal according to the identifier The information acquisition control physical resource and the uplink control mapping rule corresponding to the physical uplink control channel negotiated by the coordinated cell;
  • Step 404 The terminal maps the control physical resource to the physical uplink control channel according to the uplink control mapping rule.
  • Step 405 The terminal uses the physical uplink control channel to transmit the uplink control information.
  • the control physical resource and the uplink control mapping rule corresponding to the physical uplink control channel may be coordinated with a multi-point identifier (CoMP-ID), a terminal identifier (UE-ID), and an initial cell identifier (Anchor Cell-ID) serving cell. Any one or more of the identifiers (Serving Cell-ID).
  • the CoMP-ID is different from the common cell identifier (for example: Anchor Cell-ID Serving Cell-ID) and is CoMP-specific identification information.
  • the CoMP-ID indicates a virtual cell in the CoMP mode. It has a part of the characteristics of the common cell identifier. It can be used to identify CoMP-specific cooperative cell features.
  • the terminal serving the CoMP mode (that is, the terminal in the CoMP state) can be unique to the CoMP mode.
  • the coordinated cell that performs the cooperative allocation control of the physical resource may be all the coordinated cells in the virtual cell in which the CoMP is performed, or may be some coordinated cells in the virtual cell in which the CoMP is performed.
  • the coordinated cell needs to notify the UE in the CoMP state of the CoMP-ID of the UE-ID and the Anchor Cell-ID CoMP, and can further notify the coordinated cells that cooperate with each other.
  • the coordinated cell can also notify the Serving Cell-ID that it is in the CoMP state. terminal.
  • different identifiers corresponding to the control physical resource and the uplink control mapping rule may be used as the dominant identifier according to different application scenarios. After the corresponding identifier is selected as the primary identifier, the mapping may be performed according to the control physical resource and the uplink control mapping rule corresponding to the primary identifier, and multiple identifiers may be simultaneously executed. Corresponding uplink control mapping rules, but the uplink control mapping rules corresponding to multiple identifiers need to follow the uplink control mapping rule corresponding to the dominant identifier.
  • Cooperative Cell 1 Celll
  • Cooperative Cell 2 Cell2
  • set Cell-IDl 1
  • terminal 2-1 UE2-1
  • the UE1-1 and the UE2-1 are in the CoMP state, and are served by the Celll and the Cell2.
  • the UE1-2 is a terminal in the non-CoMP state, and the terminal belongs to the normal state, and is only served by the Celll.
  • Celll and Cell2 respectively allocate the same PRB as the dedicated PRB of CoMP, and only the terminals in the CoMP state, UE1-1 and UE2-1, can use the dedicated PRB.
  • the UE1-1 and the UE2-1 may further transmit the CoMP uplink control information by using the PRB according to the CoMP-ID corresponding PRB and the corresponding uplink PRB mapping rule acquired by the CoMP-ID.
  • the UE1-1 can receive other information of the cell configuration of the Cell1
  • the UE2-1 can also receive other information of the cell configuration of the Cell2, for example, downlink broadcast information.
  • Celll allocates PRB to UE1-1 and UE1-2; Cell2 assigns PRB to UE2-1. Coordinated when the Celll and Cell2 are allocated, so that the PRBs of UE1-1 and UE2-1 can cooperate to perform CoMP; meanwhile, the PRB allocated by Celll to UE1-2 will not be the PRB of UE1-1 and UE2-1 in CoMP state.
  • the physical uplink control channels of the allocated UE1-1 and UE2-1 correspond to different PRBs respectively to avoid mutual interference.
  • UE 1 - 2 is also assigned to a PRB different from UE 2 - 1, but UE 1 - 1 and UE 2 - 1 can be allocated on the same PRB.
  • the uplink control information in this embodiment is sent by the physical uplink control channel mapped by the control physical resources negotiated by the multiple coordinated cells, and the coordinated cell that performs the cooperative allocation control of the physical resources may be all the cooperation in the virtual cell in the CoMP.
  • the cell may also be some coordinated cell in the virtual cell in which CoMP is performed.
  • the CoMP resources described in this embodiment may be implemented in the following manner:
  • CoMP1 and CoMP12 may be the same or different.
  • CoMP11 and CoMP12 use the uplink physical resources that can be utilized when the uplink physical resources are used.
  • CoMP11 and CoMP12 need to coordinate the use of the same part of the uplink physical resources. If the uplink physical resources used by CoMP11 and CoMP12 can be completely different, the uplink physical resources can be allocated independently. CoMP has no relationship with CoMP12, CoMP13 and CoMPll uplink physical resources, and can be independent of the association relationship.
  • the physical uplink physical access channel Physical Random Access Channel, PRACH for short
  • the reference signal Reference Signal, RS for short
  • PRACH Physical Random Access Channel
  • RS Reference Signal
  • FIG. 5 is a schematic flowchart of a method for transmitting uplink information according to Embodiment 5 of the present invention. As shown in FIG. 5, compared with Embodiment 2 of the present invention, Embodiment 3 of the present invention, and Embodiment 4 of the present invention, the implementation is implemented.
  • the method for transmitting uplink information may include the following steps:
  • Step 501 The coordinated cell negotiates an access physical resource and an access mapping rule corresponding to the physical random access channel.
  • Step 502 The terminal acquires an access physical resource and an access mapping rule corresponding to the physical random access channel negotiated by the coordinated cell.
  • Step 503 The terminal maps the access physical resource to the physical random access channel according to the access mapping rule.
  • Step 504 The terminal uses the physical random access channel to transmit the random access information.
  • the primary cell receives and processes the random access information
  • some or all of the serving cells may receive the random access information, but the primary cell performs the combining and processing, and may also be part or all of the serving cells.
  • the random access information is received, and the plurality of coordinated cells negotiate with each other to determine that the processing is performed by one of the serving cells.
  • the access physical resources negotiated by the coordinated cell may be the access physical resources of the same group, that is, the common cell, and all the coordinated cells adopt a unified allocation scheduling method. It is also possible to negotiate separate or unified allocation of scheduling methods for different groups of accessing physical resources.
  • the access physical resources negotiated by the coordinated cell may be different from the access physical resources of the common cell, for example: Different random access sequences and/or different allocation methods.
  • different coordinated cells cooperate to allocate and map physical random access channel resources, and the resources used by the different coordinated cells may be allocated and mapped independently; or resources of different coordinated cells adopt the same set of physical random access channel resources, and are uniformly performed.
  • Assignment and mapping Some or all of the serving cells receive the random access information, which is processed by the primary cell; or is processed by one of the negotiated serving cells, and the access cells coordinate with each other and notify the access physical resources; or by dynamic/semi-dynamic negotiation Determined access cell processing. Neither affects the implementation of this embodiment.
  • FIG. 6 is a schematic flowchart of a method for transmitting uplink information according to Embodiment 6 of the present invention, as shown in FIG. 6, and Embodiment 2 of the present invention, Embodiment 3 of the present invention, Embodiment 4 of the present invention, and Embodiment of the present invention
  • the method for transmitting the uplink information in this embodiment may further include the following steps:
  • Step 601 The reference cell negotiates a reference physical resource and a reference mapping rule corresponding to the reference symbol.
  • Step 602 The terminal acquires a reference physical resource and a reference mapping rule corresponding to the reference symbol negotiated by the coordinated cell.
  • Step 603 The terminal maps the reference symbol to the reference physical resource corresponding to the reference symbol according to the reference mapping rule.
  • Step 604 The terminal uses the reference physical Resource transfer reference symbol.
  • the reference symbols may include one or more of the following: a Sounding Reference Signal (SRS) and a DeModulation-Reference Signal (DM-RS).
  • SRS Sounding Reference Signal
  • DM-RS DeModulation-Reference Signal
  • This embodiment can adopt the same SRS as a normal cell.
  • different coordinated cells cooperate to perform reference physical (gpSRS resource) resource allocation and mapping corresponding to the SRS, and the resources used by the coordinated resources may be independently allocated and mapped; or resources of different coordinated cells adopt the same set of SRS resources, and are uniformly allocated and mapped. Or different cooperative cells uniformly allocate SRSs corresponding to different antenna ports belonging to the same cell.
  • gpSRS resource reference physical
  • This embodiment may also adopt a CoMP-specific SRS or LTE-A that is different from the SRS of a normal cell.
  • LTE-Advanced unique SRS, which is only used by CoMP or LTE-A terminals.
  • the terminal in the CoMP state can be assigned both the CoMP or LTE-A-specific SRS and the SRS of the normal cell, or only the CoMP or LTE-A-specific SRS.
  • the SRS of the CoMP or the LTE-A occupies the same or different resources as the SRS of the common cell: carrier, subcarrier, physical resource block, subframe, time slot, OFDM symbol, sequence , sequence offset, sequence comb, frequency hopping pattern, period.
  • Different cooperative cells use the same set of DM-RS resources to perform allocation and mapping uniformly;
  • Coordinating cell coordination assigning DM-RSs of the same base sequence and different sequence offsets; or DM-RS using different base sequences but low cross-correlation sequences; or
  • the MU-MIMO terminal pair that can form a multi-cell, multi-user, multi-input and multi-input (MU-MIMO) can negotiate DM-RS, and assign DM-RSs with different sequence offsets of the same base sequence; or DM- with different base sequences but low cross-correlation sequences RS; or different coordinated cells uniformly allocate uplink DM-RSs corresponding to different antenna ports of the same cell.
  • the CoMP-specific DM-RS occupies the same or different resources as the SRS of the common cell: carrier, subcarrier, physical resource block, subframe, time slot, OFDM symbol, sequence, sequence Offset, sequence comb, frequency hopping pattern, period.
  • FIG. 7 is a schematic flowchart of another method for transmitting uplink information according to Embodiment 7 of the present invention, as shown in FIG. 7, and Embodiment 2 of the present invention, Embodiment 3 of the present invention, Embodiment 4 of the present invention, and implementation of the present invention
  • the fifth embodiment is compared with the sixth embodiment of the present invention.
  • the method for transmitting uplink information in this embodiment may include the following steps:
  • Step 701 The terminal acquires a frequency hopping mode and/or a multi-antenna transmission mode of the shared physical resource corresponding to the uplink physical shared channel negotiated by the coordinated cell.
  • Step 702 The terminal uses the shared physical resource to transmit uplink data according to the frequency hopping mode and/or the multi-antenna transmission mode.
  • each coordinated cell may coordinate to use shared physical resources corresponding to the same uplink physical shared channel (for example: PRB, subframe, and time slot).
  • shared physical resources for example: PRB, subframe, and time slot.
  • Etc., and coordinate the use of the same uplink mapping rule for example: all cells of the coordinated cell or some of the cells served by the terminal do not use the frequency hopping mode and/or use the same multi-antenna transmission mode; or use the same hopping The frequency pattern and/or use the same multi-antenna transmission mode.
  • both Celll and Cell2 may not adopt the frequency hopping mode, and may also adopt the frequency hopping mode. Use frequency hopping mode, but both use the same hopping pattern.
  • UE1 and UE3, UE2 and UE4 hopping patterns cannot conflict, and the following manner can be adopted:
  • UEs in CoMP mode and UEs in non-CoMP mode use shared physical resources of different resource regions (for example: using different PRB regions or different carriers), so that two types of UEs are used. Shared physical resources do not conflict;
  • the UE in the CoMP mode and the UEs in the non-CoMP mode use the same hopping pattern or the hopping pattern of the two, so that the shared physical resources of the two types of UEs are not A conflict has occurred.
  • Celll and Cell2 can identify the scrambling mode of UE1 and UE2 at the same time.
  • UE3 and UE4 can be identified by Cell1 in the scrambling mode only because they belong to one cell in Cell1 or Cell2.
  • UE4 can be identified by Cell2 only in the scrambling mode.
  • each coordinated cell when the uplink data information of the uplink physical shared channel is jointly received by multiple coordinated cells, each coordinated cell does not use the shared physical resource corresponding to the same uplink physical shared channel (for example: PRB, subframe, and time slot). Then, the coordinated cell needs that the shared physical resources corresponding to the uplink physical shared channel are staggered from each other and do not overlap.
  • each coordinated cell when the uplink data information of the uplink physical shared channel is jointly transmitted by multiple coordinated cells, each coordinated cell does not use the shared physical resource corresponding to the same uplink physical shared channel (for example: PRB, subframe, and time slot). Then, the coordinated cell needs that the shared physical resources corresponding to the uplink physical shared channel are staggered from each other and do not overlap.
  • FIG. 8 is a schematic structural diagram of an apparatus for transmitting uplink information according to Embodiment 8 of the present invention.
  • the apparatus for transmitting uplink information in this embodiment may include a first acquiring module 81 and a first transmitting module 82.
  • the first obtaining module 81 obtains the uplink physical resource and the uplink mapping rule corresponding to the physical uplink control channel and/or the physical random access channel and/or the reference symbol negotiated by the coordinated cell, and the first transmitting module 82 is configured according to the first acquiring module 81.
  • the obtained uplink mapping rule uses the uplink physical resource acquired by the first obtaining module 81 to transmit uplink control information and/or random. Access information and/or the reference symbols.
  • a plurality of coordinated cells are cooperatively allocated, and a plurality of coordinated cells cooperatively allocate physical uplink control channels and/or physical random access channels and/or uplink physical resources corresponding to reference symbols, so that the first transmission module is configured.
  • the uplink control information and/or the random access information and/or the reference symbol are transmitted by using the uplink physical resource acquired by the first acquiring module according to the uplink mapping rule that is acquired by the first acquiring module, so that the uplink control information and the random access information are used.
  • the reference conformity can also use the coordinated cell cooperative transmission mode to implement the uplink control signal transmitted by the physical uplink control channel, the coverage of the random access signal and the reference symbol transmitted by the physical random access channel, and the uplink data transmitted by the physical uplink shared channel.
  • the coverage of the signal is the same, which improves the effective coverage of the coordinated cell and effectively reduces the interference between the coordinated cells.
  • FIG. 9 is a schematic structural diagram of another apparatus for transmitting uplink information according to Embodiment 9 of the present invention.
  • the apparatus for transmitting uplink information in this embodiment may include a second acquiring module 91 and a second transmitting module 92.
  • the second obtaining module 91 obtains the shared physical resource and the frequency hopping mode and/or the multi-antenna transmission mode corresponding to the uplink physical shared channel negotiated by the coordinated cell, and the second transmission module 92 obtains the frequency hopping mode acquired by the second acquiring module 91.
  • the multi-antenna transmission mode transmits uplink data information by using the shared physical resource acquired by the second acquisition module 91.
  • the foregoing method in the seventh embodiment of the present invention can be implemented by the uplink information transmission apparatus provided in this embodiment.
  • the frequency hopping mode and/or the multi-antenna mode of the shared physical resources are negotiated by multiple coordinated cells, so that the conflict of the shared physical resources can be reduced when the frequency hopping technique or the scrambling technique is adopted.

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  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Mobile Radio Communication Systems (AREA)

Abstract

Des modes de réalisation de l'invention concernent un système, un dispositif et un procédé de transmission d'informations relatives à une liaison montante. Le procédé consiste à obtenir des ressources physiques de liaison montante et la règle de mise en correspondance de liaison montante correspondant au canal de contrôle de liaison montante physique et/ou au canal d'accès aléatoire physique et/ou au signal de référence ayant fait l'objet d'une négociation entre des cellules coordonnées (101), et à transmettre les informations de contrôle de liaison montante et/ou les informations d'accès aléatoire et/ou ledit signal de référence à l'aide des ressources physiques de liaison montante conformément à la règle de mise en correspondance de liaison montante (102). Selon les modes de réalisation de l'invention, plusieurs cellules coordonnées allouent de manière coordonnée les ressources physiques de liaison montante correspondant au canal de contrôle de liaison montante physique et/ou au canal d'accès aléatoire physique et/ou au signal de référence, et transmettent les informations de contrôle de liaison montante et/ou les informations d'accès aléatoire et/ou le signal de référence à l'aide des ressources physiques de liaison montante conformément à la règle de mise en correspondance de liaison montante. Ainsi, les informations de contrôle de liaison montante, les informations d'accès aléatoire et le signal de référence peuvent être transmis par les cellules coordonnées d'une manière coordonnée; la couverture effective des cellules coordonnées est améliorée et les interférences entre les cellules coordonnées sont réduites de manière efficace.
PCT/CN2010/070132 2009-01-12 2010-01-12 Système, dispositif et procédé de transmission d'informations relatives à une liaison montante Ceased WO2010078854A1 (fr)

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